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34 ECB-870 User’s Manual
3.10.9 Internal Keyboard Connector (JATKB)
Signal PIN
KCLK 1
KDAT 2
NC 3
GND 4
VCC 5
3.10.10 Signal Description – Internal Keyboard Connector (JATKB)
KCLK Bi-directional clock signal used to strobe data/commands from/to the PC-AT keyboard.
KDAT Bi-directional serial data line used to transfer data from or commands to the PC-AT
keyboard.
3.10.11 Front Panel Connector (JFRNT)
Signal PIN Signal
ACPI+ 1 2 NC
GND 3 4 VCC+
GND 5 6 NC
Reset 7 8 GND
NC 9 10 KBLCK
VCC+ 11 12 GND
Active 13 14 NC
NC 15 16 VCC
PWRBT 17 18 NC
GND 19 20 NC
NC 21 22 SPKIN
NC 23 24 NC